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davidblythe



Member Since: 27 Apr 2019
Location: Cheam, Surrey
Posts: 110

England 
TD5 wont start
Lost and need help

TD5 90 with immobiliser has run and started fine all year, tonight using either key can set immobiliser and disarm immobiliser

have a strong battery, engine turns over strongly but will not fire

At a loss any pointers please
Post #812949 31st Jan 2020 8:37pm
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diesel_jim



Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

United Kingdom 2006 Defender 110 Td5 SW Epsom Green
Does the temperature guage go to "max" when you turn the ign on?

If so, the rollover switch under the bonnet needs resetting
Post #812951 31st Jan 2020 8:40pm
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davidblythe



Member Since: 27 Apr 2019
Location: Cheam, Surrey
Posts: 110

England 
No it moves to cold only

where is this switch for future reference
Post #812953 31st Jan 2020 8:43pm
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diesel_jim



Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

United Kingdom 2006 Defender 110 Td5 SW Epsom Green
https://www.defender2.net/forum/post421658.html for the switch.


Could be anything really.... can you hear the fuel pump whirr when youo turn the ign on?

worth wiggling the CPS (Crank position sensor), on the bellhousing, kind of underneath where the above switch is

But without some form of diagnostic machine, you could be grasping at straws.


Relays in the battery box are often a cause of issues... worth giving them a wiggle
Post #812954 31st Jan 2020 8:46pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5707

2006 Defender 110 Td5 USW Zermatt Silver
I’m sure you have tried the close all the doors, lock with remote, leave a few mins then unlock try start?

Next thought is can you hear fuel pump?

If yes check clean crank sensor, refit and try.

You could then try a tow start, sometimes it can be a dodgy starter putting an electrical spike doofa thing up the thingy.
Post #812968 31st Jan 2020 9:24pm
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davidblythe



Member Since: 27 Apr 2019
Location: Cheam, Surrey
Posts: 110

England 
yes to closing doors etc

can hear fuel pump

battery voltage is 12.8v

can see no oil in ecu

friends solus edge diagnostic equipment showed no codes

next to try crank sensor
Post #813045 1st Feb 2020 11:05am
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
What is the voltage while turning over? If it drops below 9V orso the ECU shuts down so no diesel will be injected.

Sounds to me or as mentioned one off the relays under the seat or your AS10 doesn't want to do it's thing.

What you could try is disconecting the black plug from your ECU (under the seat) and plug it back. Do the same with the relays maybe a bad connection might confuse the ecu. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #813100 1st Feb 2020 5:13pm
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renoclio255s



Member Since: 08 Feb 2014
Location: norfolk
Posts: 5

United Kingdom 2000 Defender 110 Td5 HT Alpine White
hi, have you got fuel in the system if so check the pressure it should be around 60psi. If not could be pressure regulator on rear right hand of head. If not try fuel filter housing there are some valves in there that removes the air from the system
Post #813726 5th Feb 2020 9:49am
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davidblythe



Member Since: 27 Apr 2019
Location: Cheam, Surrey
Posts: 110

England 
tried a new fuel filter on the 90 and primed it with diesel, it is going through its cycle to purge air but keeps on repeating as it was doing before the filter change

having also changed the fuel filter on my 110 and it purging with 3 turns of the key and starting straight after

why is the 90 not purging the air any pointers
Post #813775 5th Feb 2020 6:04pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2779

United Kingdom 
Faulty non return valve in the diesel filter housing?
Post #813781 5th Feb 2020 6:32pm
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Merlin



Member Since: 30 Oct 2010
Location: Newmarket
Posts: 981

United Kingdom 
Have you checked it's not the accident cut-out switch on the bulkhead?
Post #813916 6th Feb 2020 3:27pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Have you tried with a bump start? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #813918 6th Feb 2020 3:31pm
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Silvertoolbox



Member Since: 13 Oct 2018
Location: Westhill
Posts: 43

United Kingdom 
Immobiliser battery? Or battery retainer in handset. Can break and give intermittant operation.
Think number of flashes (indicators) gives a clue re battery health. Ex scottish & southern 110 Td5 van (shed) with PTO driven winch (L-R special vehicles)
Before that, Disco 1, Freelander 1, 26105382 80" with a 1600cc (not much slower)
Post #813963 6th Feb 2020 7:47pm
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davidblythe



Member Since: 27 Apr 2019
Location: Cheam, Surrey
Posts: 110

England 
today i disconnected the high pressure feed to the cylinder head. once the key was turned to the start position, diesel spurted continously out of the pipe, can i assume the fuel tank pump is working

i also removed the rocker cover to make sure the cam chain was rotating once the engine was cranked

still no attempt to start, i need to check the crank position sensor, cant locate it at the minute

any feedback appreciated
Post #814360 9th Feb 2020 5:40pm
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Merlin



Member Since: 30 Oct 2010
Location: Newmarket
Posts: 981

United Kingdom 
Are you suspecting the alarm module? If it's the AS10 like mine I would check the 3 fuses just to be sure. Peter
Post #814363 9th Feb 2020 5:49pm
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